CN114275117A - Slipway protection cover - Google Patents
Slipway protection cover Download PDFInfo
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- CN114275117A CN114275117A CN202111288662.XA CN202111288662A CN114275117A CN 114275117 A CN114275117 A CN 114275117A CN 202111288662 A CN202111288662 A CN 202111288662A CN 114275117 A CN114275117 A CN 114275117A
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- connecting plate
- slipway
- protective cover
- rope
- metal
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Abstract
The invention discloses a slipway protective cover, comprising: the shielding mechanism comprises a plurality of first connecting plates, connecting pieces, second connecting plates and rotating shafts, the first connecting plates, the second connecting plates and the connecting pieces are connected through metal wires arranged in a penetrating mode, the rotating shafts are arranged inside the first connecting plates, the number of the rotating shafts is multiple, and the rotating shafts are connected with the metal wires; a connecting mechanism; the limiting sleeve is fixed at one end of the metal rope, which is far away from the recoverer; according to the invention, the shielding mechanism and the connecting mechanism are arranged, so that a net-shaped protection structure capable of being stretched is provided, the connecting sheet is arranged inside the protection structure, the support is provided through the connecting sheet, the metal wires are connected to form the net-shaped structure, the protection is provided on the surface, and the problem that the surface of a slipway is damaged due to the falling of various articles when a ship body is processed can be avoided.
Description
Technical Field
The invention relates to the field of slipways, in particular to a slipway protective cover.
Background
When a ship is built and repaired, the ship needs to drag the water to land or slide along a track with certain gradient, so the water is generally called as the water to land, and the special track for the water to land on the ship is called as a slide way. The site where the vessel is built or repaired onshore is called a slipway. When a ship is launched on a pier, if the longitudinal axis and the moving direction of the ship are consistent with the central line of the slide way, the slide way arranged in such a way is called a longitudinal slide way; if the longitudinal axis of the vessel is perpendicular to the centre line of the ramp and the direction of movement coincides with the centre line of the ramp, the ramp so arranged is called a transverse ramp.
The existing slipway is usually a simple metal plate body covered on the slipway, the structure is troublesome to lay, usually, a plurality of metal plate bodies are manually connected and covered, the efficiency is low, and when the slipway ship body is made and launched, the metal plate which is installed needs to be detached with time and labor waste, the efficiency is low, and certain use problems exist.
Disclosure of Invention
The invention aims to provide a slipway protective cover to solve the problem that the conventional protective cover is time-consuming and labor-consuming to lay and disassemble.
In order to achieve the purpose, the invention provides the following technical scheme: a dock ramp protection cover comprising: the shielding mechanism comprises a plurality of first connecting plates, connecting pieces, second connecting plates and rotating shafts, the first connecting plates, the second connecting plates and the connecting pieces are connected through metal wires arranged in a penetrating mode, the rotating shafts are arranged inside the first connecting plates, the number of the rotating shafts is multiple, and the rotating shafts are connected with the metal wires; the connecting mechanism comprises a third connecting plate, a recoverer and a metal rope, the third connecting plate is clamped with the first connecting plate, and the metal rope penetrates through the first connecting plate, the connecting sheet and the second connecting plate; and the limiting sleeve is fixed at one end of the metal rope, which is far away from the recoverer.
The rotary shaft comprises a middle shaft in the middle, a shaft sleeve is sleeved in the middle of the middle shaft, baffle plates are fixedly mounted at two ends of the shaft sleeve on the outer side of the middle shaft, bearings are fixedly mounted at two ends of the middle shaft, the metal wire is wound on the outer side of the shaft sleeve, and a spring is further arranged on the outer side of the middle shaft.
The upper end of the spring is fixedly installed with the bearing, and the lower end of the spring is fixedly installed with the baffle.
The lower end positions of the two ends of the first connecting plate are fixedly provided with first side legs, and the surface of each first side leg is provided with a through fixing hole.
The connecting piece is characterized in that second side legs are fixedly mounted at the lower side positions of two ends of the connecting piece, third side legs are fixedly mounted at the lower side positions of two ends of the second connecting plate, and slotted holes matched with the positions of the fixing holes are formed in the second side legs and the third side legs.
The surface of the first connecting plate is provided with a first rope hole penetrating through one side, and the surface of the connecting plate is provided with a second rope hole penetrating through the connecting plate.
The rotating shaft is arranged inside the first connecting plate, the two bearings are fixedly installed with the first connecting plate, and the metal wire penetrates through the first rope hole and the second rope hole to be fixedly installed with the second connecting plate.
First clamping grooves are formed in one sides of two ends of the first connecting plate, second clamping grooves are formed in one sides of the middle positions of the second connecting plates, the notches of the first clamping grooves and the notches of the second clamping grooves are matched and adjacent to each other, and the first connecting plate and the second connecting plate are connected in a clamping mode through the first clamping grooves and the second clamping grooves.
The lower surfaces of the first connecting plate, the second connecting plate and the connecting sheet are all bonded with rubber pads, and the lower surfaces of the rubber pads are polished smoothly.
The recoverer is fixed on one side, far away from the first connecting plate, of the third connecting plate, and the metal rope penetrates through the third connecting plate.
Compared with the prior art, the invention has the beneficial effects that:
1. through the mechanism and the coupling mechanism that shelter from that set up, provide and to carry out tensile netted protection architecture, inside sets up the connection piece, provides the support through the connection piece, and the wire provides the connection, forms netted architecture, provides the protection on the surface, can avoid adding man-hour at the hull, and all kinds of article drop and lead to the problem that damage appears in the slipway surface.
2. The shielding mechanism adopts a modular design, and the structure can be combined in a plurality of ways, so that the slipway can be combined according to different lengths, and the slipway can be adapted to the slipways with different lengths, so that the application range is wider.
3. The connecting mechanisms on the two sides provide main contraction power, the recoverer is used for recovering the metal rope, operation is convenient, the independent shielding mechanisms are not required to be recovered one by one manually, installation and disassembly efficiency is higher, and the use is more convenient compared with the existing structure.
Drawings
FIG. 1 is a front view of the present invention;
FIG. 2 is a front view of the shielding mechanism of the present invention;
FIG. 3 is a side view of one side of a first web of the present invention;
FIG. 4 is an enlarged view of the structure at A in FIG. 3 according to the present invention;
FIG. 5 is a side view of the other side of the first web of the present invention;
FIG. 6 is a side view of a connecting tab of the present invention;
FIG. 7 is a side view of a second web of the present invention;
FIG. 8 is a schematic structural view of a rotating shaft according to the present invention;
fig. 9 is an enlarged view of the structure at B in fig. 6 according to the present invention.
In FIGS. 1-9: 10. a shielding mechanism; 11. a first connecting plate; 111. a first card slot; 112. a first side leg; 113. a fixing hole; 114. a first rope hole; 12. connecting sheets; 121. a second rope hole; 122. a second side leg; 13. a second connecting plate; 131. a second card slot; 132. a third side leg; 14. a rotating shaft; 141. a middle shaft; 142. a baffle plate; 143. a shaft sleeve; 144. a spring; 145. a metal wire; 146. a bearing; 15. a third connecting plate; 20. a connecting mechanism; 21. a recoverer; 22. a metal cord; 30. a limiting sleeve.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-9, the present invention provides a technical solution: a dock ramp protection cover comprising:
a plurality of shielding mechanisms 10 are arranged, the number of the shielding mechanisms 10 is more than one,
the shielding mechanism 10 comprises a first connecting plate 11, a connecting piece 12, a second connecting plate 13 and a plurality of rotating shafts 14, the first connecting plate 11, the second connecting plate 13 and the connecting piece 12 are connected through metal wires 145 which are arranged in a penetrating mode, the rotating shafts 14 are arranged inside the first connecting plate 11, the number of the rotating shafts 14 is multiple, the rotating shafts 14 are connected with the metal wires 145, and when the shielding mechanism 10 is completely retracted, the distances between the first connecting plate 11 and the connecting piece 12 and the distances between the second connecting plate 13 and the connecting piece 12 are the widths of the metal wires 145 in an inclined mode;
wherein, the wire 145 connects the first connecting plate 11, the connecting plate 12 and the second connecting plate 13, when the second connecting plate 13 is stretched outwardly, the rotating shaft 14 can rotate and pay out the wire 145, the whole is elongated, when released, the rotating shaft 14 will rotate, the paid-out wire 145 will be retracted, and the mesh-like shielding structure which can be automatically retracted is formed.
The connection means 20 is provided in the form of a connection,
the connecting mechanism 20 comprises a third connecting plate 15, a recoverer 21 and a metal rope 22, the third connecting plate 15 is clamped with the first connecting plate 11, the metal rope 22 penetrates through the first connecting plate 11, the connecting sheet 12 and the second connecting plate 13, the recoverer 21 can automatically recover the metal rope 22, and the metal rope 22 penetrating through the first connecting plate 11, the connecting sheet 12 and the second connecting plate 13 can drive the recovery shielding mechanism 10 when being recovered;
the position-limiting sleeve 30 is provided with a limiting sleeve,
wherein, stop collar 30 is fixed in the one end that recoverer 21 was kept away from to metal rope 22, can be fixed with the one end and the stop collar 30 of metal rope 22, and stop collar 30 can block the surface at the second connecting plate 13 in the outside, blocks it through stop collar 30, when guaranteeing that metal rope 22 retrieves, can drive and shelter from mechanism 10 and shrink.
The rotating shaft 14 comprises a middle shaft 141 in the middle, a shaft sleeve 143 is sleeved in the middle of the middle shaft 141, baffle plates 142 are further welded to two ends, located at the shaft sleeve 143, of the outer side of the middle shaft 141, bearings 146 are welded to two ends of the middle shaft 141, a metal wire 145 is wound on the outer side of the shaft sleeve 143, a spring 144 is further arranged on the outer side of the middle shaft 141, the upper end of the spring 144 is welded to the bearings 146, the lower end of the spring 144 is welded to the baffle plates 142, the metal wire 145 is arranged in the middle of the rotating shaft 14, the baffle plates 142 and the bearings 146 are arranged on two sides to fix the spring 144, the spring 144 can rotate on two sides when the metal wire 145 is stretched, the spring 144 deforms, and when the metal wire 145 is loosened, the metal wire 145 can be retracted by the spring 144.
Wherein, the lower extreme position welding at first connecting plate 11 both ends has first limit leg 112, the fixed orifices 113 that runs through has been seted up on the surface of first limit leg 112, the downside position at connection piece 12 both ends has all welded second limit leg 122, the downside position at second connecting plate 13 both ends has all welded third limit leg 132, second limit leg 122 and third limit leg 132 all seted up the slotted hole that matches with fixed orifices 113 position, through first limit leg 112, the restriction of position is carried out to the metal rope 22 of wearing out to second limit leg 122 and third limit leg 132, and is same, metal rope 22 is also to first limit leg 112, second limit leg 122 and third limit leg 132 restrict, guarantee the accuracy of position and when retrieving, the condition of blocking can not appear.
Wherein, the surface of first connecting plate 11 is seted up and is run through the first rope hole 114 of one side, the surface of connecting piece 12 is seted up and is run through the second rope hole 121, revolving axle 14 sets up in the inside of first connecting plate 11, two bearings 146 all weld with first connecting plate 11, wire 145 runs through first rope hole 114 and second rope hole 121 and second connecting plate 13 welding, separate the certain distance between two first rope holes 114, and hug closely between two second rope holes 121, the first rope hole 114 and the second rope hole 121 of homonymy run through single wire 145 each other, form the crooked network structure of similar rhombus, when guaranteeing to retrieve, two adjacent wire 145 can not influence each other.
Wherein, first draw-in groove 111 has been seted up to one side at 11 both ends of first connecting plate, second draw-in groove 131 has been seted up to one side of second connecting plate 13 middle part position, the notch phase-match of first draw-in groove 111 and second draw-in groove 131, adjacent first connecting plate 11 and second connecting plate 13 are through first draw-in groove 111 and second draw-in groove 131 joint, two of difference shelter from carry out the joint between the mechanism 10 through first draw-in groove 111 and second draw-in groove 131, the joint is only for convenient the fixing, for guaranteeing normal use, still need to fix at the position through bolt of first draw-in groove 111, guarantee the different stability of sheltering from and connecting between the mechanism 10.
Wherein, the rubber pad has all been bonded to the lower surface of first connecting plate 11, second connecting plate 13 and connection piece 12, and the lower surface of rubber pad is polished smoothly, guarantees to adopt metal material's connection piece 12, first connecting plate 11 and second connecting plate 13 when round trip movement, can not cause the damage to the surface of slipway.
The recoverer 21 is fixed on one side of the third connecting plate 15 far away from the first connecting plate 11, the metal rope 22 penetrates through the third connecting plate 15, and the recoverer 21 can adopt a recovery structure rotated by a motor or a recovery structure recovered by a spring.
The working principle is as follows: when the shielding mechanism is used, the proper number of the shielding mechanisms 10 can be selected according to the specific length of the slipway, then the first clamping groove 111 and the second clamping groove 131 are used for fixing the first connecting plate 11 and the second connecting plate 13 between different shielding mechanisms 10, the operation process needs to be carried out on the surface of the slipway, after the operation is finished, the metal rope 22 is pulled out and sequentially penetrates through different fixing holes 113 until the metal rope is conveyed to the surface of the second connecting plate 13 at the outermost side, at the moment, the port of the metal rope 22 is fixed with the surface of the second connecting plate 13 through the limiting sleeve 30, the installation is finished, when the shielding mechanism is used, the second connecting plate 13 at the outermost side is directly pulled outwards, the whole shielding mechanism 10 can be unfolded, a reticular protection structure is formed after the unfolding, the connecting plate 12 is arranged at the outer side for protecting the slipway of a ship body from being damaged by an external structure in processing, one end of the metal rope 22 fixed with the limiting sleeve 30 needs to be wound at a proper position of the ship body in the slipway in the process, the guarantee is fixed, when need not the use, loosens the metal rope 22 of winding at hull slide side for it is inside shrink, and recoverer 21 drives metal rope 22 shrink, and blocks through stop collar 30, makes to shelter from mechanism 10 and is extruded the shrink in proper order, until piling up together completely, directly embracing away the whole of piling up together this moment and can accomplish the dismantlement work.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. A slipway protective cover, comprising:
a plurality of shielding mechanisms (10), wherein the number of the shielding mechanisms (10) is more than one,
the shielding mechanism (10) comprises a first connecting plate (11), connecting pieces (12), a second connecting plate (13) and rotating shafts (14), the first connecting plate (11), the second connecting plate (13) and the connecting pieces (12) are connected through metal wires (145) arranged in a penetrating mode, the rotating shafts (14) are arranged inside the first connecting plate (11), the number of the rotating shafts (14) is multiple, and the rotating shafts (14) are connected with the metal wires (145);
a connecting mechanism (20),
the connecting mechanism (20) comprises a third connecting plate (15), a recoverer (21) and a metal rope (22), the third connecting plate (15) is clamped with the first connecting plate (11), and the metal rope (22) penetrates through the first connecting plate (11), the connecting sheet (12) and the second connecting plate (13);
a position-limiting sleeve (30),
the limiting sleeve (30) is fixed at one end of the metal rope (22) far away from the recoverer (21).
2. The dock slipway protective cover of claim 1, wherein:
the rotary shaft (14) comprises a middle shaft (141) in the middle, a shaft sleeve (143) is sleeved in the middle of the middle shaft (141), baffle plates (142) are fixedly mounted at two ends, located at two ends of the shaft sleeve (143), of the outer side of the middle shaft (141), bearings (146) are fixedly mounted at two ends of the middle shaft (141), the metal wire (145) is wound on the outer side of the shaft sleeve (143), and a spring (144) is further arranged at the outer side of the middle shaft (141).
3. The slipway protection cover according to claim 2, characterized in that:
the upper end of the spring (144) is fixedly mounted with the bearing (146), and the lower end of the spring (144) is fixedly mounted with the baffle plate (142).
4. The dock slipway protective cover of claim 1, wherein:
the lower end positions of two ends of the first connecting plate (11) are fixedly provided with first side legs (112), and the surface of each first side leg (112) is provided with a through fixing hole (113).
5. The dock slipway protective cover of claim 4, wherein:
the equal fixed mounting in downside position at connection piece (12) both ends has second limit leg (122), the equal fixed mounting in downside position at second connecting plate (13) both ends has third limit leg (132), slotted hole with fixed orifices (113) position matching is all seted up in second limit leg (122) and third limit leg (132).
6. The dock slipway protective cover of claim 1, wherein:
the surface of the first connecting plate (11) is provided with a first rope hole (114) penetrating through one side, and the surface of the connecting plate (12) is provided with a second rope hole (121) penetrating through the connecting plate.
7. The dock slipway protective cover of claim 6, wherein:
the rotating shaft (14) is arranged inside the first connecting plate (11), the two bearings (146) are fixedly mounted with the first connecting plate (11), and the metal wire (145) penetrates through the first rope hole (114) and the second rope hole (121) to be fixedly mounted with the second connecting plate (13).
8. The dock slipway protective cover of claim 1, wherein:
first draw-in groove (111) have been seted up to one side at first connecting plate (11) both ends, second draw-in groove (131) have been seted up to one side of second connecting plate (13) middle part position, the notch phase-match of first draw-in groove (111) and second draw-in groove (131) is adjacent first connecting plate (11) and second connecting plate (13) are through first draw-in groove (111) and second draw-in groove (131) joint.
9. The dock slipway protective cover of claim 8, wherein:
rubber pads are bonded to the lower surfaces of the first connecting plate (11), the second connecting plate (13) and the connecting sheet (12), and the lower surfaces of the rubber pads are polished smoothly.
10. The dock slipway protective cover of claim 1, wherein:
the recoverer (21) is fixed on one side, far away from the first connecting plate (11), of the third connecting plate (15), and the metal rope (22) penetrates through the third connecting plate (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111288662.XA CN114275117B (en) | 2021-11-02 | 2021-11-02 | Slipway protection cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111288662.XA CN114275117B (en) | 2021-11-02 | 2021-11-02 | Slipway protection cover |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114275117A true CN114275117A (en) | 2022-04-05 |
| CN114275117B CN114275117B (en) | 2022-11-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111288662.XA Active CN114275117B (en) | 2021-11-02 | 2021-11-02 | Slipway protection cover |
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| CN (1) | CN114275117B (en) |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB564294A (en) * | 1943-04-21 | 1944-09-21 | Oscar Frederick Arthur | Improvements in mats of wire or like mesh |
| US5255998A (en) * | 1991-11-12 | 1993-10-26 | Rdb Plastotecnica S.P.A. | Multiple-layer net structure for fluid drainage, particularly for geotechnical use |
| US5394821A (en) * | 1993-08-31 | 1995-03-07 | Ziegler; Stephen R. | Protective covering for watercraft |
| US5860464A (en) * | 1994-03-08 | 1999-01-19 | Schon B.V. | Retractable blind or shade assembly |
| JP2012102520A (en) * | 2010-11-10 | 2012-05-31 | Mimasa Bussan Kk | Fall prevention panel and assembly method thereof, and net-like member assembly |
| US20170306642A1 (en) * | 2016-04-20 | 2017-10-26 | Beijing Long Fly Science and Technology Co. Ltd. | Metal Protective Net and Protection Monitoring System |
| JP2018199934A (en) * | 2017-05-26 | 2018-12-20 | 筑豊金網工業株式会社 | Stone fall guard fence |
| CN110282095A (en) * | 2019-05-29 | 2019-09-27 | 中船澄西扬州船舶有限公司 | A kind of boat launching ramp lubricant layer protective device |
| CN210457126U (en) * | 2019-04-30 | 2020-05-05 | 佛山市绿映红电梯装饰有限公司 | Hoistway door safety arrangement |
| US10792987B1 (en) * | 2019-04-24 | 2020-10-06 | Abel Trevino | Protective cover for vehicles |
| CN212447958U (en) * | 2020-06-03 | 2021-02-02 | 中海油安全技术服务有限公司 | Ocean platform wellhead anti-falling net structure |
| WO2021189266A1 (en) * | 2020-03-24 | 2021-09-30 | 深圳市大疆创新科技有限公司 | Protective cover of propeller and unmanned aerial vehicle |
-
2021
- 2021-11-02 CN CN202111288662.XA patent/CN114275117B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB564294A (en) * | 1943-04-21 | 1944-09-21 | Oscar Frederick Arthur | Improvements in mats of wire or like mesh |
| US5255998A (en) * | 1991-11-12 | 1993-10-26 | Rdb Plastotecnica S.P.A. | Multiple-layer net structure for fluid drainage, particularly for geotechnical use |
| US5394821A (en) * | 1993-08-31 | 1995-03-07 | Ziegler; Stephen R. | Protective covering for watercraft |
| US5860464A (en) * | 1994-03-08 | 1999-01-19 | Schon B.V. | Retractable blind or shade assembly |
| JP2012102520A (en) * | 2010-11-10 | 2012-05-31 | Mimasa Bussan Kk | Fall prevention panel and assembly method thereof, and net-like member assembly |
| US20170306642A1 (en) * | 2016-04-20 | 2017-10-26 | Beijing Long Fly Science and Technology Co. Ltd. | Metal Protective Net and Protection Monitoring System |
| JP2018199934A (en) * | 2017-05-26 | 2018-12-20 | 筑豊金網工業株式会社 | Stone fall guard fence |
| US10792987B1 (en) * | 2019-04-24 | 2020-10-06 | Abel Trevino | Protective cover for vehicles |
| CN210457126U (en) * | 2019-04-30 | 2020-05-05 | 佛山市绿映红电梯装饰有限公司 | Hoistway door safety arrangement |
| CN110282095A (en) * | 2019-05-29 | 2019-09-27 | 中船澄西扬州船舶有限公司 | A kind of boat launching ramp lubricant layer protective device |
| WO2021189266A1 (en) * | 2020-03-24 | 2021-09-30 | 深圳市大疆创新科技有限公司 | Protective cover of propeller and unmanned aerial vehicle |
| CN212447958U (en) * | 2020-06-03 | 2021-02-02 | 中海油安全技术服务有限公司 | Ocean platform wellhead anti-falling net structure |
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| Publication number | Publication date |
|---|---|
| CN114275117B (en) | 2022-11-25 |
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